Partial implementation of a config files parser

1 files changed, 0 insertions, 294 deletions

diff --git a/src/configure.c b/src/configure.c
deleted file mode 100644
index 7473696..0000000
--- a/src/configure.c
+++ /dev/null
@@ -1,294 +0,0 @@
-/*
-  Copyright (c) 2012, Matthias Schiffer <mschiffer@universe-factory.net>
-  Partly based on QuickTun Copyright (c) 2010, Ivo Smits <Ivo@UCIS.nl>.
-  All rights reserved.
-
-  Redistribution and use in source and binary forms, with or without
-  modification, are permitted provided that the following conditions are met:
-
-    1. Redistributions of source code must retain the above copyright notice,
-       this list of conditions and the following disclaimer.
-    2. Redistributions in binary form must reproduce the above copyright notice,
-       this list of conditions and the following disclaimer in the documentation
-       and/or other materials provided with the distribution.
-
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-
-#include "fastd.h"
-#include "peer.h"
-
-#include <config.h>
-
-#include <arpa/inet.h>
-#include <stdarg.h>
-
-
-extern fastd_method fastd_method_null;
-
-#ifdef WITH_METHOD_ECFXP
-extern fastd_method fastd_method_ec25519_fhmqvc_xsalsa20_poly1305;
-#endif
-
-
-static void default_config(fastd_config *conf) {
-	conf->loglevel = LOG_DEBUG;
-
-	conf->peer_stale_time = 300;
-	conf->peer_stale_time_temp = 30;
-	conf->eth_addr_stale_time = 300;
-
-	conf->ifname = NULL;
-
-	memset(&conf->bind_addr_in, 0, sizeof(struct sockaddr_in));
-	conf->bind_addr_in.sin_family = AF_UNSPEC;
-	conf->bind_addr_in.sin_port = htons(1337);
-	conf->bind_addr_in.sin_addr.s_addr = htonl(INADDR_ANY);
-
-	memset(&conf->bind_addr_in6, 0, sizeof(struct sockaddr_in6));
-	conf->bind_addr_in6.sin6_family = AF_UNSPEC;
-	conf->bind_addr_in6.sin6_port = htons(1337);
-	conf->bind_addr_in6.sin6_addr = in6addr_any;
-
-	conf->mtu = 1500;
-	conf->protocol = PROTOCOL_ETHERNET;
-	conf->method = &fastd_method_null;
-	conf->peers = NULL;
-}
-
-static bool config_match(const char *opt, ...) {
-	va_list ap;
-	bool match = false;
-	const char *str;
-	
-	va_start(ap, opt);
-
-	while((str = va_arg(ap, const char*)) != NULL) {
-		if (strcmp(opt, str) == 0) {
-			match = true;
-			break;
-		}
-	}
-
-	va_end(ap);
-
-	return match;
-}
-
-#define IF_OPTION(args...) if(config_match(argv[i], args, NULL) && (++i))
-#define IF_OPTION_ARG(args...) if(config_match(argv[i], args, NULL) && ({ \
-				arg = argv[i+1];			\
-				i+=2;					\
-				if (i > argc)				\
-					exit_error(ctx, "config error: option `%s' needs an argument", argv[i-2]); \
-				true;					\
-			}))
-#define IGNORE_OPTION (i++)
-
-void fastd_configure(fastd_context *ctx, fastd_config *conf, int argc, char *const argv[]) {
-	default_config(conf);
-
-	fastd_peer_config **current_peer = &conf->peers;
-
-	int i = 1;
-	const char *arg;
-	long l;
-	char *charptr;
-	char *endptr;
-	char *addrstr;
-
-	bool v4_peers = false, v6_peers = false;
-
-
-	conf->n_floating = 0;
-
-
-	while (i < argc) {
-		IF_OPTION_ARG("-i", "--interface") {
-			conf->ifname = arg;
-			continue;
-		}
-
-		IF_OPTION_ARG("-b", "--bind") {
-			if (arg[0] == '[') {
-				charptr = strchr(arg, ']');
-				if (!charptr || (charptr[1] != ':' && charptr[1] != '\0'))
-					exit_error(ctx, "invalid bind address `%s'", arg);
-
-				addrstr = strndup(arg+1, charptr-arg-1);
-			
-				if (charptr[1] == ':')
-					charptr++;
-				else
-					charptr = NULL;
-			}
-			else {
-				charptr = strchr(arg, ':');
-				if (charptr) {
-					addrstr = strndup(arg, charptr-arg);
-				}
-				else {
-					addrstr = strdup(arg);
-				}
-			}
-
-			if (charptr) {
-				l = strtol(charptr+1, &endptr, 10);
-				if (*endptr || l > 65535)
-					exit_error(ctx, "invalid bind port `%s'", charptr+1);
-			}
-
-			if (strcmp(addrstr, "any") == 0) {
-				conf->bind_addr_in.sin_addr.s_addr = htonl(INADDR_ANY);
-				conf->bind_addr_in.sin_port = htons(l);
-
-				conf->bind_addr_in6.sin6_addr = in6addr_any;
-				conf->bind_addr_in6.sin6_port = htons(l);
-			}
-			else if (arg[0] == '[') {
-				conf->bind_addr_in6.sin6_family = AF_INET6;
-				if (inet_pton(AF_INET6, addrstr, &conf->bind_addr_in6.sin6_addr) != 1)
-					exit_error(ctx, "invalid bind address `%s'", addrstr);
-				conf->bind_addr_in6.sin6_port = htons(l);
-			}
-			else {
-				conf->bind_addr_in.sin_family = AF_INET;
-				if (inet_pton(AF_INET, addrstr, &conf->bind_addr_in.sin_addr) != 1)
-					exit_error(ctx, "invalid bind address `%s'", addrstr);
-				conf->bind_addr_in.sin_port = htons(l);
-			}
-
-			free(addrstr);
-
-			continue;
-		}
-
-		IF_OPTION_ARG("-M", "--mtu") {
-			conf->mtu = strtol(arg, &endptr, 10);
-			if (*endptr || conf->mtu < 576)
-				exit_error(ctx, "invalid mtu `%s'", arg);
-			continue;
-		}
-
-		IF_OPTION_ARG("-P", "--protocol") {
-			if (!strcmp(arg, "ethernet"))
-				conf->protocol = PROTOCOL_ETHERNET;
-			else if (!strcmp(arg, "ip"))
-				conf->protocol = PROTOCOL_IP;
-			else
-				exit_error(ctx, "invalid protocol `%s'", arg);
-			continue;
-		}
-
-
-		IF_OPTION_ARG("-m", "--method") {
-			if (!strcmp(arg, "null"))
-				conf->method = &fastd_method_null;
-#ifdef WITH_METHOD_ECFXP
-			if (!strcmp(arg, "ecfxp"))
-				conf->method = &fastd_method_ec25519_fhmqvc_xsalsa20_poly1305;
-#endif
-			else
-				exit_error(ctx, "invalid method `%s'", arg);
-			continue;
-		}
-
-		IF_OPTION_ARG("-p", "--peer") {
-			*current_peer = malloc(sizeof(fastd_peer_config));
-			(*current_peer)->next = NULL;
-
-			memset(&(*current_peer)->address, 0, sizeof(fastd_peer_address));
-			if (strcmp(arg, "float") == 0) {
-				(*current_peer)->address.sa.sa_family = AF_UNSPEC;
-				conf->n_floating++;
-				continue;
-			}
-
-			if (arg[0] == '[') {
-				charptr = strchr(arg, ']');
-				if (!charptr || (charptr[1] != ':' && charptr[1] != '\0'))
-					exit_error(ctx, "invalid peer address `%s'", arg);
-
-				addrstr = strndup(arg+1, charptr-arg-1);
-
-				if (charptr[1] == ':')
-					charptr++;
-				else
-					charptr = NULL;
-			}
-			else {
-				charptr = strchr(arg, ':');
-				if (charptr)
-					addrstr = strndup(arg, charptr-arg);
-				else
-					addrstr = strdup(arg);
-			}
-
-			if (charptr) {
-				l = strtol(charptr+1, &endptr, 10);
-				if (*endptr || l > 65535)
-					exit_error(ctx, "invalid peer port `%s'", charptr+1);
-			}
-			else {
-				l = 1337; /* default port */
-			}
-
-			if (arg[0] == '[') {
-				v6_peers = true;
-				(*current_peer)->address.in6.sin6_family = AF_INET6;
-				if (inet_pton(AF_INET6, addrstr, &(*current_peer)->address.in6.sin6_addr) != 1)
-					exit_error(ctx, "invalid peer address `%s'", addrstr);
-				(*current_peer)->address.in6.sin6_port = htons(l);
-			}
-			else {
-				v4_peers = true;
-				(*current_peer)->address.in.sin_family = AF_INET;
-				if (inet_pton(AF_INET, addrstr, &(*current_peer)->address.in.sin_addr) != 1)
-					exit_error(ctx, "invalid peer address `%s'", addrstr);
-				(*current_peer)->address.in.sin_port = htons(l);
-			}
-
-			free(addrstr);
-
-			current_peer = &(*current_peer)->next;
-
-			continue;
-		}
-
-		exit_error(ctx, "config error: unknown option `%s'", argv[i]);
-	}
-
-	if (conf->n_floating && conf->bind_addr_in.sin_family == AF_UNSPEC
-	    && conf->bind_addr_in6.sin6_family == AF_UNSPEC) {
-		conf->bind_addr_in.sin_family = AF_INET;
-		conf->bind_addr_in6.sin6_family = AF_INET6;
-	}
-	else if (v4_peers) {
-		conf->bind_addr_in.sin_family = AF_INET;
-	}
-	else if (v6_peers) {
-		conf->bind_addr_in6.sin6_family = AF_INET6;
-	}
-
-	bool ok = true;
-	if (conf->protocol == PROTOCOL_IP && (!conf->peers || conf->peers->next)) {
-		pr_error(ctx, "for protocol `ip' exactly one peer must be configured");
-		ok = false;
-	}
-
-	if (ok)
-		ok = conf->method->check_config(ctx, conf);
-
-	if (!ok)
-		exit_error(ctx, "config error");
-}